当前位置: 首页 > 图文教程 > 网络编程 > ASP > 关于客户端用ASP参生报表(高级篇)

ASP
ASP编程菜鸟易犯的一个错误
ASP申请单动态添加实现方法及代码
经验总结:ASP与存储过程解析
学以致用 驳“ASP低能论”
使用ASP脚本技术
ASP、Request对象与SQL注入
判断访问是否来自搜索引擎的ASP函数
ASP判断数据库值是否为空的通用函数
大刀阔斧扔掉ASP,充分准备学习ASP.NET
关于创建多级文件夹的ASP函数实例
ASP正则判断取出HTML的图片地址的函数
网页不存在自动给管理员发邮件的ASP代码
ASP教程:等差数列和等比数列通项公式
Recordset对象和Command对象的区别
Filter与updatebatch混合使用实现批量更新
ASP实例:检测整数和长整数的函数
在不支持FSO的服务器上使用XMLDOM创建HTML文件
汉字转拼音ASP函数
网页输出N行N列表格的ASP实现方法
ASP操作数据库的类

关于客户端用ASP参生报表(高级篇)


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-11-03   浏览: 165 ::
收藏到网摘: n/a

  上回曾贴一篇较简单的用ASP+RDS客户端参生报表
此回贴一篇较复杂的用ASP+RDS+组件客户端参生报表
错误说明:(若提示ActiveX 元件无法参生 RDS.DataSpace)
IE需设置安全选项
操作:菜单工具->INTERNET选项->安全性->自定义
设置:起始但ActiveX不标示为安全->开启
原理说明:
客户端直接用RDS产生RecordSet安全性不够,使用了
middle-tier Automation components 后可大大增加安全性!
请看下文:
编写注册元件:
ActiveX Dll project:iacrdsobj.vbp
Class Module name:RsOp

Public Function ReturnRs(strDB As Variant, strSQL As Variant) As ADODB.Recordset
'Returns an ADODB recordset.
On Error GoTo ehGetRecordset
Dim cn As New ADODB.Connection
Dim rs As New ADODB.Recordset
Dim strConnect As String
strConnect = "Provider=SQLOLEDB;Server=server name ;uid=sa;pwd=; Database=" & strDB & ";"
cn.Open strConnect
'These are not listed in the typelib.
rs.CursorLocation = adUseClient
'Using the Unspecified parameters, an ADO/R recordset is returned.
rs.Open strSQL, cn, adOpenUnspecified, adLockUnspecified, adCmdUnspecified
Set ReturnRs = rs
Exit Function
ehGetRecordset:
Err.Raise Err.Number, Err.Source, Err.Description
End Function
然后 MAKE iacrdsobj.dll
若有错,请设置VB菜单PROJECT-REFREENCE
增加 MicroSoft ActiveX Data Object 2.6 Library(当然数字要高一点)

然后 注册iacrdsobj.dll到数据库server(为安全,最好更改数据库uid最好不为sa)!
好,接下来看asp
long1.asp
<html>
<head>
<META content="text/html; charset=gb2312" http-equiv=Content-Type>
<title>client use rds produce excel report</title>
</head>
<body bgColor=skyblue topMargin=5 leftMargin="20" oncontextmenu="return false" rightMargin=0 bottomMargin="0">

<div align="center"><center>
<table border="1" bgcolor="#ffe4b5" style="HEIGHT: 1px; TOP: 0px" bordercolor="#0000ff">
<tr>
<td align="middle" bgcolor="#ffffff" bordercolor="#000080">
<font color="#000080" size="3">
client use rds produce excel report
</font>
</td>
</tr>
</table>
</div>
<form action="long1.asp" method="post" name="myform">
<DIV align=left>
<input type="button" value="Query Data" name="query" language="vbscript" onclick="fun_excel(1)" style="HEIGHT: 32px; WIDTH: 90px">
<input type="button" value="Clear Data" name="Clear" language="vbscript" onclick="fun_excel(2)" style="HEIGHT: 32px; WIDTH: 90px">
<input type="button" value="Excel Report" name="report" language="vbscript" onclick="fun_excel(3)" style="HEIGHT: 32px; WIDTH: 90px">
</div>
<DIV id="adddata"></div>
</form>
</body>
</html>
<script language="vbscript">
sub fun_excel(t)
Dim rds,rs,df,ServerStr
dim strSQL,StrRs
Dim xlApp, xlBook, xlSheet1
ServerStr="http://Sql Server Name" 'the sql server name of register iacRDSObj.dll
'use rds to produce client recordset
set rds = CreateObject("RDS.DataSpace",ServerStr)
'eg:set rds = CreateObject("RDS.DataSpace","http://iac_fa") 'iac_fa is the LAN sql server name
'eg:set rds = CreateObject("RDS.DataSpace","http://10.150.254.102") '10.150.254.102 is the LAN sql server IP Address
'the register com
Set df = rds.CreateObject("iacRDSObj.rsop", ServerStr)
'the query string of sql
strSQL = "Select top 8 * from jobs order by job_id"
'the recordset
Set rs = df.ReturnRs("pubs",strSQL)
if t=1 then
if not rs.eof then
StrRs="<